Guitar Chord Theory Course

Has anyone gone through the Guitar Chord Theory course by Mark Goldenberg on Peg Head Nation? The preview video looks interesting and he supposedly was a student of Ted Greene, which is a pretty good pedigree to have when it comes to chord theory.

There seem to be a number of chord construction studies by folks who erroneously call their instructional work "chord theory". Music is ripe for inventing your own terms and nomenclature, as we witness in the forum daily.

A lot of teachers/authors present the same basic information. That's all fine of course, and that information and those forms are important to learn, but application to tunes is where the rubber meets the road and is what counts the most.